Whisky Stones

After being frozen these stones are colder than ice, and they won't water down your drink.

They're simple, you keep them in the freezer and use them as an ice substitute. Each of the nine sandstone cubes are 20mm squared. Their edges are slightly rounded so they'll roll easily around in your glass. They don't retain the flavor so can be used and reused an infinite number of times in any drink, from fruit juice to white wine.